Critical

U.S. CISA adds Linux Kernel flaws to its Known Exploited Vulnerabilities catalog

Security Affairs

September 20, 2026 at 4:12 PM

Actively Exploited

Overview

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added several vulnerabilities in the Linux Kernel to its Known Exploited Vulnerabilities catalog. This update indicates that these flaws have been identified as actively exploited in the wild, posing risks to various systems that rely on the Linux operating system. While specific details on the nature of the exploits are not currently available, the inclusion of these vulnerabilities in the catalog signals a need for immediate attention from system administrators and security teams. Users and organizations utilizing affected Linux versions should prioritize patching their systems to mitigate potential attacks, as these vulnerabilities could be leveraged by attackers for unauthorized access or other malicious activities. Staying updated with the latest patches is crucial for maintaining system security.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: Linux Kernel versions and distributions affected by the vulnerabilities
Action Required: System administrators should apply the latest security patches from their Linux distribution vendors to address the identified vulnerabilities.
Timeline: Newly disclosed

Original Article Summary

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Linux Kernel flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added [1, 2] the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: Below are detailed descriptions of the flaws: At the time of this writing, there are currently no details on how the […]

Impact

Linux Kernel versions and distributions affected by the vulnerabilities

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

System administrators should apply the latest security patches from their Linux distribution vendors to address the identified vulnerabilities.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Linux, Update.

Read Original Article

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